hci_usb Power Control From Command Line

[RichD]

Hi, 

We use the nRF52840 hci_usb sample to emulate a mobile phone App communicating with a product, allowing us to check BLE control of a product and data reported back to the App.  I can see the hci_pwr_ctrl sample for changing the power settings automatically and might copy some of this into hci_usb, but how from the linux command line could I tell the USB dongle to change power level to 4?. Is there a tool or script to send cmds into hci_usb as we are trying to avoid the uart option

Tried hci_usb with hci commands for power control but btmon reports the event is not recognised, even when I compile in the extra cfg options

CONFIG_BT_HCI_VS=y

CONFIG_BT_HCI_VS_EXT=y

CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=y

CONFIG_BT_HCI_RAW_CMD_EXT=y

CONFIG_BT_CTLR_SET_HOST_FEATURE=y

Thanks

[Sigurd Hellesvik]

Hi,

First, I like to get a more complete picture, so let me ask some questions:

Which version of the SDK do you use?

Can you give some examples of commands you use from the CLI?

Regards,
Sigurd Hellesvik

[RichD]

Hi,

Using the SDK v2.6.0 hci_usb example.  This command was obtained from one of the other chats for tx power control and the output is below

sudo hcitool -i hci1 cmd 0x3f 0x000e 0x02 0x6461 4

output shown in 'sudo btmon'

Thanks for any advice and willing to solve myself if you can put me in the correct direction

Rich

[Sigurd Hellesvik]

When looking around for this ticket I found  How to create a HCI vendor-specific command of zephyr? . This is the ticket you got the configs from right?

Does that mean that you also have created a vendor specific HCI command for the power?

[RichD]

Hi, yes that was the link and for manual testing it does seem the only way.

The example hci cmds was from:  RE: How to setting TX power through HCI command? 

[Sigurd Hellesvik]

Did you create the command handler in your code?